bangs



AC. T. BANGS.

POPPET VALVE.

APPLxcAmN man 1uLY14.1922.

15,438. 3 SHEETS-SHEET 3.'

Reissued Aug. 29, 1922.

"j CHESTER 'r'. isANesifon enrolled IIJ-Liners.

To all urli/omi?? concern-.f

Be it known that I, CHLSTRl Blanes, a

i citizen of the United States, and a resident oil 'Y this specification.

the heat of the v vis a full, clear, and exact y same, reference belnghad p 10 ,'eause after a considerable4 amount the city ofl ChiClgO: in the 'coulltyf'f Cook and ,State of Illinois, have inventedoertainnew and useful Improvements in Poppet Valves; andI do hereby declare'V that the `following description 'of the to theaccompanying drawings,and to the numerals v.of reference marked thereon,

This invention relates to all improved i form of construction Nfor poppetvalves as used in internal-combustion engines Great diificarbonization of yp o'ppet valves; v'lhisis particularlytrue of the exhaustl valves {becarb'onaceous dproducts of; combustion have been deposite engine causes said carbon deposits to become incandescent, thus causing preignition in the engine and also. causing warping, pitting, and breaking of .the valves. This means' caking and adherence of the carbon deposits tothe valves, and is ina large measure due to the fact that they, are v sulpected to ay highheat'from the Avalve it- `tion with the yhot gases are insufficiently cooled The tops off-the pop et valves in' the ordinary` ty es offinterna -combustion engines are or linaril'y directlyin communicaof combustion, and bythe water jackets which are commonly provided. i Itis detrimental effects of over heating, fto provide some means .of'fcooling thefvzyi'lves.l f

for internal-comi It ls'also an vr` object v'of invention to provide a hollow @ned to radiate provide a mvalve, construction for internalvcombustion engines having means associated therewithforeiroulati g'eoolingair around the valves of saidengine.;`

Itis Aanother object of this invention to ,i y:provide lannair-circulating system for e001- v.111g the Valvesof an internal-combustion enginewherein cooling vair is drawn over the which Aform a part ofl on and around said valves,

vthrough Figure 7 -s struction f i Specification of Reissued Letters liatent.` RaissudiAug'-, 1922' original No.1,414`,495, aateaivray` 2, 192e, sensi No. aseos'sjiei M'arhs, 19g@ pplicafmforvw .y issue led July 14, 1 922. Serial N@ 5 v: f 4 t v. i s A.

surface ofy thevvalves` andl heated kleaving the. .valves 1s eonduetedto the air intakel of the yearbureterj'of said'jvinternalcombustion engine.

v circulated rate of circulation of saidA cooling duid being dependentupon the speed ofthe engine.-

t fis animportant object of this invention to providela valve construetion for internalcolnbustlon. engines .wherein the valvesarey always in communication with a y p eoolingflilid eulty has heretofore Vbeen experienced `with .the

:Other: fand fur-ther important objects ko thi'sin-ven'tion will be apparent 'from the disclosures ofthe drawings and specification.

preferred form.) is

. Theginvention (in a illustratedinthe drawings and. hereinafter more'iully described.

-On the :drawings:y f

,figure l, isa'view l,in elevationof ari-internal-combustion engine equipped with the valve-Cooling arrangementof this invention.

Fleur@ 2 Aisa fragmentary 'transverse' See ,tops of the Figure is a fragmentary seetionon line` offFigurej2, with partsi shown in elevation.

f Figure toplplanlview of one of lthe valves embodying the"vv principlesof this 4in- Imention, showingft e air intake therefor in ,sectionp' Y Y par-v tieularly desirable,`1n order .to prevent the ure l. 1

tion showing the manifold used in a vmodilied form of valve Constructiony embodyingl the principles of this invention. valve for internal-.com-

' bustion engines having the: interior thereofv speciallydesi eat.

It is a further-object of this invention to `rFigure 48 isL a?longitudinal section taken ure Y As shown on lthe drawings.:

Figure-ais 'section line '959 sftp@ `prireiples ot this invention is `adapted vto be .115@

Figurezwjfis a section online ig# l,ure f f 4, ,Figure 6 a 'section on line'6j (,)fIlrig-` owing the valvecon-lr "g'lhe valve construction` embodyingffthe .i

y part of this invention, it will be ,herein-,described only so ,.farjas it relatesto;V

the valve construction of thisk invention andy y l cooperates with the operation thereof.l Said engine 1 is provided with acarbureterland intake manifold 3 leading therefrom, and an exhaust `manifold 4 which carries the burnt gases away from the engine. A waterjacketl 5 is` also'rprovided, "for circulating cooling -between saidjmanifold Gand the top ofthe rate passages 3 and 4:

v thereover.

cylinder block. Cool air in the manifoldv and correspond in numberand are co-axialwith the valves of the engine 1. Positioned below the ycool air? inlets are the valves 10 which areconstructed according to theprinciples of this invention. Said valves 10 are` adapted to seat inseats 11 formedin sepaof the usualV construction leading respectivelytoftheinlet manifold 3 and thejexhaust manifold ,4" of the engine 1, andare operated by cams 12 and springs y13 in the usual and well-known manner. Said valves 10 are constructed similar` inlets 8 `are formed to a hollow piston and are slidable in cylin-i ders y14:` formed in the cylinder block of the engine 1 directlyrbelowthecool'air inlet 8. A sealing fit between'V the valvejl() and the `walls of thecylinde'r 14 is assured by means of piston rings 15` v whichare engaged inv grooves intlie upper "portion of said valves. Lubrication'ofthe walls of theA cylinders 14 is provided by tubes 16 which lead from the oil pump and oil supply of the engine to the walls of saidcylinders K14:. v' .To provide for cooling the interiorof'the valves 10, radiating fins 17 are formedY integrally therein as clearlyshownin Figuresfi and 5.? r

In lthe modiedform "'ofwconstruction shown in vFigures 7,8, and 9 the cooling air is admittedv to the cool air inlets 8 through a manifold '18` whichis integrally formed Said fmanifold "18 andc`ool air linlets l8 areremovably secured to the cylinderhead ofthe internal-combustion engine 1 by desired.'` The heated air from thev valve is conveyed to the intakel of thecarbureter 2 yby the pipe 7 'as heretofore described, n

The operation is as .followszff y ly The constructionof this invention is particularly `designed -to provide means whereby Lcooling air` may be circulated over thetop of the valves'o'fan internal-combustion engine. The cooling -air enters "through the i air inlets 8 tothe interior of the valve 10.

' As theA air` becomes heated by the valve, it

said'cool`v air inlets bolts 19, or may be clamped thereon if,y

rises and is drawninto the intake of the carbureter and through the pipe 7. Thus, when the engine isA running there is a constant circulation of air entering through the cool air inlets V8 and drawn outfthrough'th'e pipe 7 into the intake' ofthe carbureter 2. vrThe amount ofi'air circulation of course-depends upon the suction of the carbureterQ which is in lturn dependent upon the speed of the enginelfV Therefore, the amount ofvcooling air circulated inside of the valve 10 depends upon lthe. speedv ofthe engine, Vand therefis no danger of the valve becoming voverheated at high engine speeds.' y

y In the modified form of construction 7, 8,"and; 9 thecooling air shown'in Figures isiirstpassed through a suitable air washer is introduced into the Vmanior screen, and fold 18 throughl the pipe 20 leading .from said washing o r screening device. y, With this arrangementy clean air always'enters through the cooling air inlets 8 and clean heated air is always introduced into the carbureter' Thisrarlrangemefnt does away withclogging of the carbur'eter and subsequent fouling of the engine due to impure air. With the construction of `this invention, depositsy ofy'carbon `on the 'valves and the seats thereof are greatly minimized dueto the fact thatv said valves'` and fseafts do not become heated enough to cake the carbon thereon. Carbon"` 'that is deposited on* the valves, not being Vheated and caked, is 'easily blown out and Y vthe' valves of the .engine are` readily keptclean and tight. ADanger of.A preignition from incandescentcarbon is eliminated 'to' a tgreat degree byv the superior'cooling means V of 'this invention. V VVarping `and breaking `of the valves is also done away with, and the. eiiiciency of theY motor isl greatly increased cool airy maybe admittedfto the intake 'of the 110 carbureter,ifnecessary.. j Y

'While means have been shown and del 'scribed whereby the heated air isl taken from the manifold bythe suction of the cabureter,

it is not purposed vtojlimit thisz invention thereto. .A "fan Aor other air circulating mechanism may-be connected to thepipe 7 'and used for circulating lcooling fluid' over'the valves. v` l 'I vam aware that numerous detailsjof con- 120 struction Amay" bel varied'through 'a wide range without departingfrom the principles of this invention, and I 'therefore do rnot purpose limiting'the patent granted otherwise than necessitated by theprio'r art., I

I claimas my invention; 1. In an internal-combustion engine, a pop-v vpet valve, a hollow cylinderH integral therewith, an engine bloclrhaving a cylindrical wayin which said-cylinder slides, a tube 13 1.05 The eiiiciency` of thecarbureter is also in- V l mounted onthe engine block, opento the atmosphere, extending into the interior of said hollow cylinder and concentric therewith, and longitudinal fins on the interior `surface of said cylinder extending radiallynearly to` said tube.

2. Inan internal-combustion engine, a poppetl valve, a hollow cylinder integraltherewith, an engine block having a cylindrical way in which said cylinder slides, a tube mounted on the engine block, open to the atmosphere,

extending into the interior of saidhollow cylinder nearly to the position of lthe outer surface of said valve when lifted farthest from its seat and concentric therewith, and

longitudinal iins on the interior surface of said cylinder extending radially nearly to said tube.

' 3. In an internal-combustion engine', a series of poppet Valves, hollow cylinders one integral with each valve, an engine blockv havin a series of ways in which said cylinders s 1de, a manifold secured to said engine block, a series of tubes mounted in said manifold, open to the atmosphere and each extending into the interior of one of said cylinders and concentric therewith, longitudinal ns on the interior of each cylinder extending radially nearly into Contact with said, tube, and means for withdrawing air from said manifold. i

4. In an internal-combustion engine, a pop'- pet valve, a hollow cylinder integral therewith, an engine;` bl0ck`.having a cylindrical v l Wayin which' said cylinder slides, a tube mounted on the engine block, open to the atmosphere, extending into the interior of said hollow cylinder and concentric therewith, longitudinal ns on the interior surfacel of said 4cylinder extending radially nearly lto said tube,and m eans formaintaining 'a cur'- rent of airY through said tube.

5. In an internal combustion engine, a

valve chest, Valves therein, a conduit for each of said valves, leading romoutside the valve chest to the faceof its valve opposite l the seat thereof, and a conduit-from said valve chest tothe carbureter, whereby the valves varecooled'by a` stream of air and warm airis introduced into the carbureter.

In testimony whereof I `have vhereunto subscribed my name in the presence of two subscribingr witnesses.

CHESTER T. BANGS.

i Witnesses:

CHARLES W. HILLS, Jr., OSCAR HARTMANN. 

